Mpeg-4 – VBrick Systems StreamPlayer v4.4 User Manual
Page 21

Preferences
StreamPlayer User Guide
15
MPEG-4
Due to the lower bandwidth nature of MPEG-4 streams, StreamPlayer offers several 
parameters to tune the receiving of MPEG-4 streams.
Buffer Size
Sets the buffer size which provides a more smooth viewing experience 
if there is packet loss. Default (and minimum setting) is 200 
milliseconds for UDP Playback (typical on a Local Area Network) and 
2000 milliseconds (2 seconds) for TCP Playback (typical on the 
Internet).
MPEG-4 Decoder There are several settings that can improve the video quality of
MPEG-4 streams by post processing the video signal after it has been 
decoded. However, this increases CPU utilization substantially. 
Deringing and Deblocking are resource intensive and are not 
recommended unless the PC has a 2.0 GHz, or higher, processor. On 
lower end machines, enabling Deringing and Deblocking may degrade 
video quality.
Enable Deringing
Corrects for certain motion artifacts.
Deblocking
Smooths the video frame by smoothing artifacts inherent to the digital 
compression process.
MPEG-4 RTSP 
Streams
StreamPlayer Plus can receive MPEG-4 streams via several methods in 
order of efficiency – UDP, RTSP Interleaving, or HTTP tunneling. 
When Automatic is chosen StreamPlayer Plus will try different 
protocols to establish the best connection. In some cases, for example, 
if you know you cannot receive UDP streams because of firewall 
issues, you may want to define the method StreamPlayer tries to 
connect because the automatic method can cause up to several 
seconds of delay. The port can also be modified, but this is not 
recommended, unless you know that the port on the VBrick or Video 
on Demand server that is sending the video has also been changed.
